Question

define density and give its si unit

Answer 1

Weight (mass) per unit of volume used as a measure of the compactness of a substance. It is commonly expressed as kilograms per cubic meter (kg/m3) or pounds per cubic foot (lb/ft3), although kilograms per liter (kg/l) and pounds per gallon (lb/gallon) are also sometimes used. Density of water is one gram per cubic centimeter (g/cm3), steel 7.9 g/cm3, lead 11 g/cm3, gold 19 g/cm3, ice 0.92 g/cm3, gasoline0.8 g/cm3, common wood 0.65 g/cm3, cork 0.24 g/cm3, and air (at sea level) 0.0013 g/cm3. Average density (D) is computed by the formula D = m ÷ V where 'm' is the mass of a substance and 'V' is its volume.

Answer 2

Hello friend!

Density of a substance is its mass per volume and its SI Unit is kg/meter cube. Its symbol is small letter p.


I hope this helped you. Thank you ^_^